LOUISVILLE, KY - Louisville police are not planning major security upgrades at this year's Kentucky Derby in the wake of the Boston terror attack, but they are asking track visitors to be vigilant on race day.

Police will have about 1,200 officers out in force for the Derby and Kentucky Oaks, which is the Friday before the May 4 Run for the Roses.

Maj. Kelly Jones encouraged racing fans to alert officers of any suspicious-looking items left unattended. He says the Boston Marathon bombings have reminded people to "have a heightened sense of awareness."

Visitors are prohibited from bringing backpacks or duffels into the track area on the two days.

Churchill Downs President Kevin Flanery says there will be increased staff at entrance gates to check belongings.